【題目】t時某物質(zhì)的溶解度100g,該溫度下,此物質(zhì)的飽和溶液中下列質(zhì)量關(guān)系正確的是(

A、溶質(zhì):溶液=1:1 B、溶質(zhì):溶劑=1:1

C、溶劑:溶液=1:1 D、飽和溶液的質(zhì)量一定為200g

【答案】B

【解析】

試題分析:t時某物質(zhì)的溶解度100g,是指t時,100g水中溶解100g該物質(zhì)達(dá)飽和;溶液質(zhì)量等于溶質(zhì)質(zhì)量和溶劑質(zhì)量之和,因此,該溫度下,飽和溶液中,溶質(zhì)質(zhì)量:溶液質(zhì)量=100g:(100g+100g)=1:2,A錯誤;溶質(zhì)質(zhì)量:溶劑質(zhì)量=100g:100g=1:1,B正確;溶劑質(zhì)量:溶液質(zhì)量=100g:(100g+100g)=1:2,C錯誤;t時,可以配制該物質(zhì)任意質(zhì)量的飽和溶液,D錯誤。故選B

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